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A self-reset discorfue-quality rotor composite magnetic flow fluid damping device

A magnetorheological damper, magnetorheological fluid technology, applied in the direction of spring/shock absorber, spring, shock absorber, etc., can solve the problem that the energy consumption function of the damper does not have a self-reset function and reduce the reliability of the shock absorption system , earthquake destructive and other problems, to achieve the effect of shock absorption and self-reset, high cost performance, strong energy consumption.

Active Publication Date: 2022-08-05
BEIJING UNIV OF TECH
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  • Application Information

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Problems solved by technology

However, the traditional magnetic induction damper usually relies on the power supply. In an earthquake, especially in the case of a large earthquake, the earthquake is extremely destructive, and the power supply may fail, resulting in the failure of the damper and reducing the reliability of the shock absorption system.
In addition, the traditional damper only has the function of energy consumption and does not have the function of self-resetting

Method used

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  • A self-reset discorfue-quality rotor composite magnetic flow fluid damping device
  • A self-reset discorfue-quality rotor composite magnetic flow fluid damping device
  • A self-reset discorfue-quality rotor composite magnetic flow fluid damping device

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Embodiment Construction

[0037] The embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0038] First of all, it should be noted that the self-returning disc spring-mass runner composite magnetorheological damper shown in the accompanying drawings is intended to briefly, clearly and clearly describe the present invention, so the accompanying drawings cannot be used as a reference to the present invention. limits.

[0039]The invention includes one energy consumption module and two self-reset energy consumption modules, the energy consumption module adopts magnetorheological fluid to damp energy consumption, and the self-reset energy consumption module adopts disc spring to provide self-recovery force. Each module works independently, the hysteresis curve is the sum of each other, and the effect of energy consumption and reset is remarkable. It can be set at the maximum displacement of the building structure and bridge structure, and can also b...

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Abstract

The invention relates to a self-resetting disc spring-mass runner composite magnetorheological damper, which is mainly composed of a parallel combination of an energy dissipation module and a self-resetting module. Two high-strength screw rods are fixedly arranged on the outer cylinder body, and two mass runners are arranged in the sealing cavity. It can move along the axis direction of the high-strength screw rod while rotating around the high-strength screw rod; the part of the connecting rod in the sealing cavity is sleeved with a permanent magnet ring, a magnetic-conducting ring, and a magnetic-isolating ring, and the sealing cavity is filled with magnetic The rheological fluid; the left and right disc springs are freely sleeved on the connecting rods outside the sealed cavity, and the permanent magnet rings and the right disc springs are respectively sleeved at both ends of the left and right disc springs. end plate. The invention provides certain rigidity and strength and stable energy dissipation capacity for the structure, and has excellent self-resetting function at the same time.

Description

technical field [0001] The invention relates to a self-resetting disc spring-mass runner composite magnetorheological fluid damper, which belongs to the technical field of vibration reduction and isolation in civil engineering. Background technique [0002] Earthquake disasters have the characteristics of suddenness, low predictability and strong destructiveness, and are considered to be one of the most serious natural disasters faced by human beings. It will cause great damage to the structure and seriously endanger people's life and property safety. my country is one of the earthquake-prone countries, so it is very important to reduce earthquake damage to various buildings and infrastructure. The current structure mainly resists earthquakes and dissipates seismic energy by improving its own stiffness and strength. When a strong earthquake acts, even if the overall integrity of the structure is maintained, the deformation is too large and some components are severely damag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/02F16F15/023F16F15/06F16F9/53
CPCF16F15/022F16F15/023F16F15/06F16F9/535F16F2224/045
Inventor 董慧慧胡潇杜修力
Owner BEIJING UNIV OF TECH
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